GIER: A Danish computer from 1961 with a role in the modern revolution of astronomy

A Danish computer, GIER, from 1961 played a vital role in the development of a new method for astrometric measurement. This method, photon counting astrometry, ultimately led to two satellites with a significant role in the modern revolution of astronomy. A GIER was installed at the Hamburg Observatory in 1964 where it was used to implement the entirely new method for the measurement of stellar positions by means of a meridian circle, then the fundamental instrument of astrometry. An expedition to Perth in Western Australia with the instrument and the computer was a success. This method was also implemented in space in the first ever astrometric satellite Hipparcos launched by ESA in 1989. The Hipparcos results published in 1997 revolutionized astrometry with an impact in all branches of astronomy from the solar system and stellar structure to cosmic distances and the dynamics of the Milky Way. In turn, the results paved the way for a successor, the one million times more powerful Gaia astrometry satellite launched by ESA in 2013. Preparations for a Gaia successor in twenty years are making progress.Comment: 19 pages,8 figures, Accepted for publication in Nuncius Hamburgensis, Volume 2

Optical disks become erasable

The topics covered include the following: optical recording; how does it work?; why all the fuss?; state of the industry; sample applications; and future directions

Sources of Resilience in the Computer and Software Industries in France

French hardware manufacturers were by and large incapable not only of translating technological advances into industrial products but even of understanding the new opportunities these advances offered. While true up to a point, this approach, focused on the failure of the so-called ''national champion'' policy, is incapable of explaining why French providers of IT services have had considerable success both in their own domestic market and in the wider European market. The argument advanced is that a very active higher education policy and national research strategy has produced a supply of particularly valuable competences which feed the IT sectors. In addition, the previous mission-oriented policies encouraged the development of effective technological districts which now nurture a plethora of small, innovative IT firms.IT industry dynamics; France; high-skilled labour; SMEs

Spartan Daily, December 7, 1981

Volume 77, Issue 65https://scholarworks.sjsu.edu/spartandaily/6841/thumbnail.jp

Використання хмарних обчислень для розвитку інформаційно-комунікаційної компетентності вчителів

The article deals with the problem for development of techers’ information and communication competence and use of cloud computing for it. The analysis of the modern approaches to the use of cloud technologies and projects for professional development of teachers and development of teachers’ information and communication competence have been presented.There are the main characteristics of software as a service on the Internet for education leading companies Google, Microsoft, IBM. There are described some actions of these companies, which are conducted to help teachers to master cloud technology for improving the professional activities and development of teachers’ information and communication competence. The examples of ways of development of teachers’ information and communication competence and training teachers to use modern ICT in the professional activity are given in the paper. The Cloud based model for development of teachers’ information and communication competence has been proposed.Стаття присвячена проблемі розвитку інформаційно-комунікаційної компетентності вчителів за допомогою використання хмарних обчислень. Здійснюється аналіз сучасних підходів до використання хмарних технологій та проектів для професійного розвитку вчителів та розвитку інформаційно-комунікаційної компетентності вчителів. Пропонуються основні характеристики хмарних обчислень провідних компаній Google, Microsoft, IBM, з точки зори їх необхідності для здійснення навчального процесу в мережі Інтернет. Описуються дії цих компаній та інші навчальні проекти, метою яких є розвиток інформаційно-комунікаційної компетентності вчителів за допомогою хмарних обчислень. Наводяться приклади шляхів рішення проблеми розвитку інформаційно-комунікаційної компетентності вчителів за допомогою використання сучасних інформаційно-комунікаційних технологій. Запропонована модель розвитку інформаційно-комунікаційної компетентності вчителів на базі хмарних обчислень, виділені основні вимоги та елементи цієї моделі

History of the numerical aerodynamic simulation program

The Numerical Aerodynamic Simulation (NAS) program has reached a milestone with the completion of the initial operating configuration of the NAS Processing System Network. This achievement is the first major milestone in the continuing effort to provide a state-of-the-art supercomputer facility for the national aerospace community and to serve as a pathfinder for the development and use of future supercomputer systems. The underlying factors that motivated the initiation of the program are first identified and then discussed. These include the emergence and evolution of computational aerodynamics as a powerful new capability in aerodynamics research and development, the computer power required for advances in the discipline, the complementary nature of computation and wind tunnel testing, and the need for the government to play a pathfinding role in the development and use of large-scale scientific computing systems. Finally, the history of the NAS program is traced from its inception in 1975 to the present time

Spartan Daily, November 11, 1981

Volume 77, Issue 50https://scholarworks.sjsu.edu/spartandaily/6826/thumbnail.jp

ANALYZING BIG DATA WITH DECISION TREES

ANALYZING BIG DATA WITH DECISION TREE

CAHRS hrSpectrum (May - June 2002)

HRSpec02_06.pdf: 66 downloads, before Oct. 1, 2020